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Jan. 14, 1930. w. w. LANDSIEDEL CONTROL CAM ASSEMBLY LIFTING MEANS Filed Sept. 19, 19.27 '2 Sheets-Sheet Win. ldzzalaf Jan. 14, 1930. w. w. LANDSIEDEL CONTROL CAM ASSEMBLY LIFTING MEANS Filed Sept. 19, 1927 2 Sheets$heet jaizawol ttornqy erilzz.

Patented Jan. 14, 1930 I UNITED STATES PATENT OFFICE WALTER W. LANDSIEDEL, OI GIN CINN A'II, OHIO, ASSIGNOB 'IO REMINGTON RAND INCL,

OI BUFFALO, NEW YORK, A CORPORATION OF DELAWARE CON'IBOL-CAM-ASSEMBLY LIFTING MEANS Application filed September 19, 1927. Serial No. 220,390.

This invention relates to improvements in adding and recording machines of the movable carriage type.

This invention more particularly relates to the carriage mechanism of such machines in which there are a series of control cams carried by the carriage, which control certain functions and operations of the machine.

The object of this invention is to provide a singlecontrol for all of these cams, by means of which they may be moved into their functioning and non-functioning positions as desired. Previous to this invention the cams were only individually removable from the carriage, such removal destroying the cam setup, of course. This invention comprises means for lifting both the cams and cam drive bars out of the functioning position upon pushing a bar in one direction, and for returning them to their normal functioning position by ushing the bar in the opposite direction,

without altering the set-up or destroying the accessibility for removal of cams individually if desired. When the cams are in their nonfunctioning position, the functions of the machine may be controlled from the usual function keys.

Other ob'ects will be apparent from the following description, taken in connection with the accompanying drawings which show one form of embodiment, and in which Fig. 1 is atop plan view of the improvement and its relation .to the control cams and their drive bars. v

Fig. 2 is a front view of the same.

Fig. 3 is a front view of the same with the control cams lifted into their non-functioning position.

Fig. 4 is a partial left side view of the carriage and the main body of the machine.

Fig. 5 is a section on the line 55 of Fig. 2.-

Fig. 6 is a section on the line 66 of Fig. 5. Fig. 7 is a side view of a Dalton bookkeepin machine.

ig. 8 is a section on the line 88 of Fig. 4. The Dalton adding machine, to which this device has been shown applied, comprises the usual machine body 10, (Figs. 4, 5 and 7), which houses the accumulating and recording mechanisms. The usual carriage 11, (Fig.

7), is slidably mounted on the said body and has the usual arms 12 and 13, (Figs. 1, 2, 3, and 4) extending rearwardly of the machine, cross braced by the rods 14 and 15, (Fig. 1). The guide plate 16 is fixedly secured inside of the left hand arm 12 of the carriage by studs 17 and 18 and is spaced away from the arm 12 by spacers 19, (Figs. 1 and 8). The stud 17 shoulders against the arm 12, passes thru a spacer 19 and the guide plate 16, and screws into the rod 14. The stud 18, (Fig. 4), similarly passes through a spacer 19 (Fig. 1) and fastens into the guide plate 16. Another guide plate 16 is similarly fastened inside of the right hand arm 13 of the carriage. Each guide plate is provided with a number of slots; a to guide slot 21, (Fi 4), two lower guide slbts 22, and a push Tar guide slot 23, (Fig. 6). Each guide plate is also provided with two spring anchor posts at its upper extremity, guide plate 16 having two single spring anchor posts 24, (Fig. 1), and guide plate 16 having one single sprin anchor post 24 located toward-the rear, igs. 1, 4 and 6), and one double sprin anchor post 25 located toward the front, (Figs. 1 and 2).

The usual cam drive bars 20, (Figs. 1, 2, 3, 5 and 6), which are adapted to carry a number of control cams 26 in different ositions, are securely fastened at their en s to L-shaped drive bar carriers 27. This assembly is mounted between the guide plates 16 and 16. The said drive bar carriers 27 each carry three studs extending thru the slots 21 and 22, (Fig. 4), in their respective guide plate 16 or 16, the top stud 29, (Figs. 4, 5 and 6) engaging with the slot 21, and the lower studs 28, (Figs. 4 and 6) engaging with the slots 22, the said lower studs also act as spring anchor posts for the lower ends of the springs 30, the upper ends of which are secured to the spring anchor posts 24 and 25 in the guide plate 16 or the anchor posts 24 in the guide plate 16.

The cam drive bar assembly is thus slidably mounted between the guide plates 16 and 16 for a short vertical travel, which is limited by the upper ends of the slots 22, and this assembly is constantly urged in an upward direction by the springs 30. The upper in which the cams 26 are in position to clear the usualoarriage control arm rolls 31 carried by carriage control arms 32 which are fastened to the machine frame.

The position of this'cam drive bar assembly is controlled by a push bar 33, (Figs..1, 2, 3 and 6) which, when manually-operated in one direction, releases the cam drive bar assembly to move to its upper position, (Fig.

3), and when moved in the opposite direction, positively moves the said assembly into its ower position, (Fig. 2), in which latter position the cams cooperate with the control arm rolls 31. The push bar 33 is slidably mounted in the push bar slots 23, (Fig. 6), in the guide plates 16 and 16', and extends beyond the ends of the carriage passing thru suitable clearance holes 34 in the drive bar carriers 27, and clearance slots 48, (Figs. 4 and 6), in the arms 12 and 13. The said push bar is provided with two cam surfaces 35 and 36, (Figs. 2 and 3), the latter having an abrupt return surface, constitutinga stop shoulder 37 and being also provided with a stop shoulder 37'. These cam surfaces are spaced to coincide with cam rollers 38 and 39 (Figs. 1, 2 and 3), which are mounted between two of the middle cam drive bars 20, and will operate to move the said rollers in a downward direction when the push bar is moved to the right, thus lowering the entire cam drive bar assembly to bring the control earns 26 into cooperative relation with the control arm rolls 31, as shown in Fig. 2.

The ush bar 33 is locked to thecarriage, when tiie control cams 26 are in their lower or functioning position, by a latch 40, (Figs. 1, 2, 3, 4, 6 and 8). The latch is pivoted on the stud 17 and has a clearance jog 41, (Figs. 4 and 6), a throw limit slot 42 slidab y receiving the stud 18, a spring anchor 43, and a finger 44, (Figs. 1 and 4). The latch is constantly urged counter-clockwise by a spring 45, (Figs. 2 and 4), fastened to the spring anchor 25 in the guide plate 16 and to the spring anchor 43. This movement is limited by the push bar 33 which it strikes, and when the push bar is in its extreme left hand position the latch enters into a slot 46, (Flg. 6), in the push bar, locking the same in place.

When it is desired to raise the cam drive bar assembly, the finger 44 of the latch 40 is depressed, which releases the latch from the slot 46, and the push bar may then be pushed to the left allowing the said drive bar assembly to rise to the limits of the cam surfaces 35 and 36 under the action of the springs 30. As shown in Figures 2 and 3, each end of the push bar is shaped to facilitate manipulation of the bar in either direction.

'VVhile the invention has been shown as carried out in connection with a Dalton adding machine it is to be understood that this means therefor mounted movably thus effectually tion on the claims, as the invention in the form of embodiment disclosed and in other forms falling within the scope of the claims, is applicable to other typesof machines.

The term cam is used in the claims for convenience and is not to be construed as defining the shape of the control members 26. I cla1m:-- I 1. In a machine of the class described, the combination of control cams, supporting means therefor mounted for straight line movement for carrying the cams into and out of functioning position, spring means urging said supporting means in one direction, and means for moving said supporting means in the opposite direction against the force of said spring means. 1

2. In a machine of the class described, the combination of control cams, supporting means therefor mounted for straight line movement for carrying said cams into and out of functioning position, spring means urging the supporting means in one direction, and cam means for moving said supporting means in the opposite direction. 3. In a machine of the class described, the combination of control cams, supporting for carrying said cams into and out of functioning position, spring means urging the supporting means in one direction, a longitudinally slidable bar, and a cam on said bar for moving said supporting means in the opposite direction.

4. In a machine of the class described, the combination of control cams, supporting 7 means therefor mounted movably for carrying said cams into and out of functioning position, spring means urging the supporting means in one direction, a longitudinally slidable bar, and a plurality of spaced cams on said bar for moving said supporting means in the opposite direction.

5. In a machine of the class described, the combination Withcontrol cams and bars carrying said cams; of parallelly extending spaced supporting members for said bars, means for slidably supporting said supporting members, spring means urging said spaced supporting members in one direction,

a manipulative bar extending transversely of said spaced supporting members and their supporting means and having a slidable hearing in the latter, and cams on said manipulative bar for moving said spaced supporting members against the action of said springs or permitting the springs to function, upon iongitudinal movement of saidmanipulative 6. In a machine of the class described, the combination with control cams and bars supporting said cams; of plates supporting the ends of said bars,

a carriage, fixed bracket members on the carriage adjacent to said supporting plates, means slidably supporting said plates on said brackets, springs connected to said plates and brackets urging said plates in a direction to carry said cams out of functioning position, a manipulative bar mounted in said brackets for longitudinally slidable movement, and cams on said manipulative bar operatively associated with said plates for moving said plates against the tension of said springs to carry the control cams into functioning position.

7. In a machine of the class described, the combination with control cams and bars carrying said cams; of means supporting said bars to permit said control cams to be moved into and out of functioning position, a manipulative member, and means carried by said bars for co-action with said manipulative member for controlling the position of said bars and the position of said control cams.

8. In a machine of the class described, the combination with control cams and bars carrying said cams; of rollers carried by said bars, and manipulative means for applying pressure against said rollers for moving the bars in one direction and for removing such pressure from said rollers for permitting the ars to be moved in the opposite direction.

9. In a machine of the class described, the combination with control cams and bars supporting said cams; of rollers supported by and between said bars, means for movably supporting said bars to permit movement of said control cams into and out of functioning position, a manipulative bar mounted for movement in the direction of length of said supporting bars, and cams on said manipulative bar cooperable with said rollers for moving said control cams into one of their positions.

10. In a machine of the class described, the combination with control cams and bars supporting said cams; of rollers supported by and between said bars, means for movably supporting said bars to permit movement of said control cams into and out of functioning position, a, manipulative bar mounted for movement between and in the direction of r slidably supporting said cams with res ect to said brackets, a manipulative bar shdably mounted in said brackets and having each of its ends accessible outside of its adjacent bracket, and means for controlling the position of the control cams upon movement of said manipulative bar in either direction.

13. In a machine of the class described, the combination of a control cam, means for supporting the same for movement into and out of functioning position, a movably mounted manipulative member, a cam on said member, stops on said member, and means immovably mounted with respect to said control cam and co-acting with the cam on said member for moving said control cam in one direction and cooperable with said stops on said member for limiting the movement of said member in each directlon.

WALTER WM. LANDSIEDEL.

length of said supporting bars, and cams on said manipulative bar cooperable with said rollers for moving said control cams into one of their positions.

11. In a machine of the class described, the combination with a carriage and control cams and bars supporting said cams; of brackets secured to said carriage, means for slidably supporting said bars on said carriage, springs urging said bars in one direction, rollers on said bars, a manipulative bar slidably mounted in said brackets, and cams I on said manipulative bar adapted upon movement of said manipulative bar in one direction permit said sprin s to move said supporting bars, and opera 1e in the opposite 

